Friction shock-absorbing mechanism



Apr. 1o, 1923. y 1,451,1@3

J. F. ocoNNQR FRICTION SHOCK ABSORB'ING MECHANISM original Filed sept. 8, 1921 2 sheets-sheet 1 4 533 El y figg! Apr. 10, 1923. 1,451,103

J. F. O'CONNOR FRICTION SHOCK ABSORBING MECHANISM Original Filed Sept. 8, 1921 2 sheets-sheet 2 All.

I fave/Z221 Fatented Apr. l0, 1923.

UNITED srAras 1,451,103 PATENT orricr..

:form I'. ocoNNoa, or CHICAGO, ILLINOIS, AssIeNoa '.ro lWILLIAM H. mima, or

A cHAzY, New Yoan.

FBICTION SHOCK-ABSORBING MECHANISM.

Application led September 8, 1921, Serial No. 499,209. Renewed February 16, 1923. v

To all whom t may concern.'

Be it known that I, JOHN F. OCoriNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Im rovement in Friction Shock-fibsorbing Mgchanisms, of which the following is a full, clear, concise, and exact description, reference being had to the accompany7 ingdrawings, forming a part of this specification.

This invention relates to improvements 1n friction shock absorbing mechanisms. n

One object of the invention is to provide an eflicient draft gear.

Other specific objects will appear from a com lete description of one embodiment of the invention hereinafter followin In the drawing, to which re erence is hereinafter made, Figure 1 is a horizontal sectional view in part plan of av draft rigging embodying the invention. Figure 2 is a cross-section taken on line 2,--2 of Figure 1. Figure 3 is a cross-section taken on ine 3-3 of Figure 1. Figure 4 is a partial longitudinal sectional view taken on line of Figure 3. Figure 5 is a similar section taken on line 5-5 of Figure 3. Figure 6 is a perspective view of the spring follower employed in the gear. Figure 7 1s a perspective viewof one of the wedge elements. And Figure 8 is a perspective view of one of the friction elements.

In the drawing, the numerals 10-10 indicate draft members or parts of the car frame to which the draft rigging is applied. The butt of the coupler is shown at 11, having a usual couplerkey 12, by means of which it is slidingly connected, as at 13, to the draft yoke 14. Usual front and rear stops are shown respectively at 15 and 16.

, 17 indicates a front follower; 18 a shell, 19

a supporting tie or carrier plate, secured in a manner.well understood, to the draft members. -Within the shell are mounted the spring elements 20 and a wedging system 21. The wedging system includes the central wedged element 22 and the lateral wedge elements 23-23, the latter being provided with the outer anti-friction roll seats 2li-24 'and the 'inner anti-friction roll seat 25, each provided with an anti-friction roller 26. On either side of the wedging system there 1s mounted a set of friction plates comprising the longitudinally fixed plates 27 and the movable plates 28 alternately arranged as plalnly disclosed in Figures 1, 2 and 3. zIhe plates 27 are provided each with upper and lower lugs 29 adapted to enter the upper and lower internal transverse grooves 30 provided in the shell, which permit their lateral movement in respect to the wedging system, and when actuated thereby prevent their longitudinal'4 movement. Rearwardly4 the said plates are provided with slots 130 which members, upon the spring follower hereinafter described, enter. The spring follower as a whole, is indicated by the numeral-31 and comprises the plate 32 against the rear face of which the springs members are seated. Near'either end lugs .or guides 33A are forwardly extended from its front face and are adapted to enterand slide within the slots 130 in the lates 27. Intermediate its `ends tli'e spring ollower includes lthe blocklower. The spring follower is further provided with the upper fiange 38 and the lower flange 39 vertically spaced apart sufficiently to embrace the elements -of the wedging system, which, when mounted and in normal position of the parts has its outer spring seats 32 withirf the space defined by the flanges 38 and 39 of the follower so that the ends ofthe anti-friction roll terminate between the plates 38and 39 of the spring follower and are held thereby against accidental endwise removal. The anti-friction rollers operate between-the wedge elements and the adjacent friction plates 28. By reason of the construction of the spring follower a simple andin eflicient means is provided for the retention of the anti-friction rollers in their proper position.

I have herein shown and described what I now consider the preferred manner of carrying out the invention, but the same is merely illustrative and I contemplate all changes and modifications that come within the Scope of the claims appended hereto.

I claim:

1. ,In a friction shock absorbing mechanism, having friction, spring and wedging v associated with said wedging elements, the combination therewith of a spring follower having a pair of flanges embracing the wedging elements and forming stops for the ends'of the anti-friction rollers.

` nism, 4spring and friction elements, in combination with a wedging system and aspring follower, the wedging system havingantifriction members therein; the spring 'fol-r lower'having a pair of anges opposing ,the

anti-friction members at their ends.

' 3.' In a friction'shockabsorbing mecha# nism, the combination with friction and spring elements, of a wcdging system therefor-and a spring follower, the wedging sys' tem "comprising spreading and anti-friction elements, the springv follower having a'pair of anges embracing the wedgingsystem A and forming endwise stops for the antl-friction elements(t Y 4, ln a riction'shock absorbing mechanism, the combination 'with friction members teenies and.v springs, of*v aspring `follower and a wedgmg system, the wedging system includi lng a spreadmg element and. anti-frictionmembrs mounted. between. saidl spreading element and the friction element; the spring o follower havin anti-'friction element retain- 2. ln. a friction vshock absorbing mecha.

ingianges em racing the wedging system.

5. In av friction shock absor ing-mechamsm, the combination with friction members and springs, of aspring follower and a .wedging system, the wedging system includ- -mg ya spreading element and anti-friction' members mounted between said spreading element andthe friction element, the sprin v follower being provided with upper an lower anges `forming retaining members for the said .anti-'friction member.

" lin witness that l claim the foregoing lI have hereunto subscribed 4my name this 31st day or Aug.,1921.

Witnesses:

CARRIE GAILIN'G, UNA C; Para JoHN r. oconnon. i 

